Improvement in feeding quicksilver to stamps and amalgamators



thtiid iait anni ditta.

Letters Patent No. 111,669, dated February 7, 1871.-

IMPROVE'MENT IN FEEDING QUICKSILVER TO STAMPS AND AMALGANIATORS.

The Schedule referred to in these Letters Patent and making part of thesame.

To all whom it may concern had to the accompanying drawing, forming apart otithis specification, and to -the letters of reference markedthereon.

My invention has for its object to provide au apparatus for feedingquicksilver to stamp-mills and amalgamators, which may bc readily adjusted` so as to supply a larger or smaller quantity of quicksilver,

as may be desired, to the mill or amalgamator, and

by means of which the quantity so. fed or supplied may be accuratelymeasured and determined.

Hitherto, the usual mode employed has been to throw in byvhand a smallquantity of Quicksilver at certain intervals; but it is evident that bysuch means the quantity fed would be irregular, even with the greatestcare.

' By my invention, however, the quantity supplied can be regulated withthe greatest nicety and precision.

This invention is also well adaptedfor supplying oil to `machinery forlubricating purposes.

The nature of my invention consists in the employment or use of a cupprovided atvits lower extremity with a hollow stem, throughwhich theQuicksilver is conducted into the Astampo'r amalgamator.

W'ithin the said stem is fitted and works a horizontal tapering shaft,Vhaving an equal bearing through the said stem, which said shaft isprovided with one or more longitudinal slots, within each of which saidslots is vfitted a sliding plug, operated by a set-screw located andworkingwithiu the shaft.

Secured to the outer end'ot1 this shaft is a pulley, by which the shaftis operated, and, the shaft rotates, the slots already mentioned receivea charge of quicksilver vfrom the cup, and delivenit into the opening inthe stem, from whence it passes into the stamp or amalgamator, the sizeof the charge being regulated at will by means ofthe set-screw abovementioned.

To enable others skilled in the art to make and use my invention, I willproceed more particularly to describe its construction and operation.

Figure 1 is a top plan View of my apparatus.

Figure 2 is a vertical section, taken through the 'line X X.

Figure 3 is a transverse section of the shaft to show the position ofthe sliding plugs,

Letters of like name and kind indicate like parts in each of the gures.

A represents the cup, which 'may he .made of any proper material and ofsuitable dimensions, Aand is provided at its'lower extremity with ahollow stem, B, thrpugh which the QuicksilverV is conducted from the cupA to the amalgamator.

'lhe lower end of l this stem is fitted into the shell or -coveringofthe amalgamator ron which it is to be used, either by meansof' ascrew-thread, as seen at a, or by any other suitable and well-knownmeans.

Within the stem B is closely fitted a horizontal tapering `shaft, C,which has an equal bearing through the said stem, and 4is made to rotatetherein by means of'a pulley, D, attached and secured to its outer end.

The shaft C is provided with one ormore longitudinal slots, which, asthe shaft rotates, receive the quicksilver from the cup A, and deposititwithin the hollow stem B, from whence it passes into the'amalgamator.

Within each of these slots is fitted a sliding plug, b, for the purposeof regulating the quantity or size of the charge o'f quicksilverreceived from the cup and deposited A.within the amalgamator.

Each 'ofthe said plugs is provided vwith a gib, c, that iits and worksin an annular groove on a shaft attached to a setscrew, E, located andworkingwithin the shaft, by which means the said plugs are madeadjustable, -so that the quantity of quicksilver receivedinto the slotsat each charge may be increased or diminished as may be desired.

One of `these plugs is made longer than the others, and extends outsideof the stem, so that its end comes opposite to ascale,'f, marked uponthe shaft,

by which means the quantity of Quicksilver received not requireparticular description.

It ,will be understood that the pulley D may be either turned by handor. driven by a belt, as may be desired.

The operation is simple and readily understood.

Vhen the shaft G is made to rotate, each ot: the slots in'its turn comesdirectly underneath the opening iu the bottom of the cup' A, andreceives its ch. rge, which it deposits in thehollow stem B, from whenceit passes into the amalgamator, the quantity or size ofthe charge beingregulated by means of the sliding plugs fitted in the slots on theshaft, which said plugs are adjusted by means of the'set-screw E,

' so that the recess will hold just the quantity wanted;

and, the shaft being closely fitted within the stem,

. the charge of quicksilver "received Vfrom the cup into the recess is'cut oix and retained in the latter, until, by the rotation of theshaft,it is brought to the open space in the lower part Iof thestem, when itfalls out and passes into the amalgalnalgor.

Having thus described my invention,

What'I claim as new, and desire to secure by ters Patent 0f the UnitedStates, is-

1. The adjustable plugs b, operated by means o f `a set-screw, andconstructed and arranged in connection With the shaft O and cup orreservoir A, to cut olf Lei- and deliver to the stamp-mill oramalgamator any desired quantity of' quieks'ilver, substantially asherein ,shown and described.

2; In combination with the plugs b and shaft C, the scale or indicatorj,substantially as described, and for the purposes set forth.

GEORGE G. MUNSON.

Witnesses: JOHN SITRQRNTON,

WM. VENTZ.

